Radiator core



March 16 1926.

N. s. DgAMAN-r RADIATOR CORE Filed August 3, 1921 2 Sheets-Sheet 1` w March 16 1926.

N. s. DIAMANT I RADIATOR CORE Filed August 3, 1921l 2 Sheets-Sheet 2 i completed Patented Mar. 16, 1926.

, UNITED s'iarss rarENi ortica.

NICHOLAS DIAMANT, F LOCKPORT, NEW YORK.

RADIATOR CORE.

Application filed August 3, 1921. Serial No. 489,463.

of the cooling medium used in an internal combustion engine or other device, and more particularly to radiators of this kind provided with substantially uprighty water or steam tubes and radiating fins which conl duct heat from the tubes.

The objects of this invention are to provide a radiator of this kind with radiating fins of improved construction which are so formed and arranged as to increase the efficiency of radiators of this kind; also to provide means of improved construction for spacing the radiatingfins in the desired' relation to each other; also to so form the fins as to produce an irregular flow of air through the air passages of the radiator, to lincrease the efficiency ofthe same; also to improve the construction of radiators of this kind in other respects hereinafter specified. l

In the accompanying drawings:

Fig. 1 is a front elevationY of a portion of a radiator core embodying the invention.

Fig. 2 is a view showing the fins of the radiator core separated for the purpose of more clearly illustrating their structure.

Fig. 3 is a fragmentary face view of a blank from which one of the radiating fins is made.

Figs. 4, 5 and 6 are similar fragmentary views showing different steps in the formation of the radiating fins.

Figs. 7 and 8 are sectional viewsthereof on lines 7-7 and 8-8 on Figs. 4 and 5 respectively.

Fig. 9 is a perspective fins.

Fig. 10 is a fragmentary sectional elevation of a radiator core embodying the invention.

Fig. 11 is a fragmentary sectional elevation thereof showing means embodying the invention for producing an irregular flow of air through the air passages of the radiator.

Fig. 12is a perspective viewV of a partly view of one of the Fig. 13 is a view showing fins and spacing members of modified construction and separated from each other.

Fig. 14 is a view similar to Fig. lshowing the fins and spacingmembers in operative relation to each other. i

Fig. 15 is a perspective view of a vfin'and spacing member spacedl apart.

Fig. 16 is a sectional elevation of a iin and spacing member.

Figs.. 17 and 18 are fragmentary elevations of a radiator core having the radiating fins differently arranged, Fig. 17 showing the adjacent fins spaced apart to better illustrate the structure thereof.

. The radiator in connection with which the invention is shown in the V'accompanying drawings has a plurality of substantially upright tubes A spaced apart and conducting the medium to be cooled from one to another `reservoir of the radiator, the reservoirs not being shown. Some of thev heat of the medium to be cooled is transferred directlyfroin the tubes to the air passing through the radiator, and radiating fins are also provided' which contactwith the tubes and by means of which heat is dissipatedby being transferred from the radiating fins to the air contacting therewith. These tubes are preferably provided with flat sides which extend substantially from the front to the rear faces of the radiator core.

kThe radiating fins in the construction. shown comprise strips or bands of metal which are bent into corrugated or Zig-Zag shape and the radiating fins are so spaced relatively to each other as to form a plurality 0f air passages through the radiator from the front to the rear faces thereof.-

The air passages mayy be of any desiredv form, those shown being four-sided or substantially diamond shaped iii cross section. In order to form the ns in this manner, thevstrips from which the fins are formed are bent alternately in opposite directions along the dotted lines Vb yshown in Fig. 3, thus vforming radiatingiins B having the Zig-zag formation shown in the drawings, and provided. with alternately oppositely directed faces b. ball of the'faces b yb2 being of the same size. f

It is desiredA to spacetlie radiating finsin rsuch relation to each other that the lbent edges ofthe fins contact with or are arranged in close proximity to the bent edges of adjacent `fins, preferably in such a manner as to ifonni substantially lriliainond `shaped air passages. In order to eilect the desired spacing of the tins relatively to each other, spacing means are providedwhich are pret erably arranged at the front and re r :faces of the radiator. In the construction shown in Figs. l to l2 inelusiveythe radiating tins are provided with spacine strips D which iare.ormod intcg' al therewith. ilnordcr to produce ins hauling iintegral rips, the blanks from Which the ainsi a reinadeiare ipro- `villedfiadjacent and uparaillcl to their edge Aportions aritlr slits C, which are i oi: a ilength equal to the Width ot twolaceait L? el the istnip. Eaelr slit Cfextendsthrough tivo adjacent faces Z1 andwis `spaced from adnjacenteslitsdiy `a silnilardistance. ilter theslits have been made iin itheastrips, those portions only lot .the blank which `have been :slittare bent into the desirodshapm as shown finllilig.- 4,"`tl1us fornlingithc faces Z1 Z1 itlu'ough `avhichilthe `slitsiextelnl,iiuhile ithe portions of the strip betweonwthe slits iareulcltuin lbentmruflat. it'ter this operation 'the odge iportions `oilthe blank are bent: throughwan v`angle Jel about {ISOGValongftho linesuiudr rated infFigJet by so, lthese ilines being: substantiallycontinuations of the slits C. Attertlie/edges have been turned over ini `this finunner, `the iin presents the Viappearance A"'slnlwi'ir lin lFigs; andl 12 iniwhichlthe ibont portions ofthe iin uinrlhintegral spacing uneinhcr` `forni `sullstuntiallyidiamond shaped figures andlin which the portionsbetwcen "fthe"-bentfportions-are flat. 'llheilnent `step A"inthe torlnation of the insconsists :in bend- *ing ltheselflat portions to `give thorn the same half diamond shaped* -l`orn1iiotihei ipontions already lbent; thus completing the tins. The tins then harelthe :1p1` war-ance shown in Figs. 1ljland 9,^`tl1e.f'faces l1 tthereolil forming l atpluriility of halt dianiondsliaped` portions and the `spacing. members l o1 edges D having lhaltdiamond shaped partsl olf twice the size "of`tlieboflyl prtiens-"of the din, fthe outer Lpotrtions dloftivhiclrcxtend beyond orfaway from thebody portions ot the {ininto lpositionsftoiM engage "betucen 'tliefliaces l1 b2 of airadjacentlin toholdftheuilns in spaced '1"elatio1r`to eachftither. "Ehe-spacing inembers, therefore, have about 'twice thepitch of the"corrugaltionsofthe tins and extendltroln 'the concave,bent/edgeportienet one radi ating` 'tin' into ithe concave;` bentf `potrtion of aan ailljaceiit`flin."ftl1e' spacing lnenibei-ssshown extending'substantially lfiarallel* to the lfaces "of 1e tins. In `building up the radiator,

the tinsare arranged as Jshown inllFigUQ and when moved into engagement Vforin a radiator corelhaving the appearance shown inl"`Fig. `1. Bymeans ot this arrangement thelins forni diamond shaped air ypassages assho'wn intlthe sectionallvieml Fig. "110, yin

which it Will be observed that by using the diamond shaped air passages.` the tins at theiinteninediatc portions ol the radiator contact only along edges so that the air pas sages are all 'formed hy single thicknesses ol nietahthe "portions oil greater thicknesses being only at the extreme edge portions of "the radiating tins. By means oit this arrangement a very eflicient use is inade oil? the nietal in the radiating tins.

The radiating` tins may be provided with Athe usual slots or apertures l@ through which the tubes A extend, these apertures:ibeing p reierably `formed n `such a :manner that :the Lmetal at the edges e ot the apertures is bent or flanged to lie itiatiy against the sides ot the tubes as shovm in Fig. l0, whereby a `goed therunal contact is obtained Ytor insuring an `cllirient transmission oit the heatfrom the tubes to the radiating lins.

ln the inodihed crnistruiiftion shown in llligs. flli toil@l inclusive, `the radiating fins rare `provided with spaoing ineinbers, which are not formed integral with the fins. ln this construction, tl represents the radiating lios and l-lf the spacing members, the radial',A ing `fins /bei ng o if' nig-'laura corrlligated or .halt `:diamond shape, i and the spariiing :nienihers being oi` similar shape but having 1e bends spaced twice `as Atar apart. (o11s-seip1en`tly, when the lios and s-:pacing` members are asscnibled thoyiare arranged in the relation zto caclnothortas indicated linillig. 13, and when ai-iseinbled present the ,appearance ishou'n in; Fig. llf -`In this construction the spacing Linenibers 4may betniade of thicker for stronger` and also eheaper material than that used in the radiating tins. This adds strength to the radiator Without reducing the etticienoy therro'l".

iinihoth ot the dormsshown, the `asselnbling).` of: theiradialor i olieatly .tacilitaterh i since tlieilinsf and spacing.members naturally tend `tolsecltithe correct positions relatively to `each other andiareiiheld against move- `mentent otfthesc positions by the peculiar `constriaction of the spacingmembers and tins.

Itisiwell lmmvnl'hat iniorder to produce theihcstcoolingi cllhcts` the passage ot' `the air through the radiator must he Vinterruptieiliouibrolten upainsuch'a manner as to insure that :the air.contacting with the heated surfaces will be mixed with the` air passing rthrongh .ithc interined i ate porti ons of 4 the air passages, or in other Words, to bring the air pasiiiing `through the .intermediate portions of theuair passages into contact `with the heated surtac The construction of the radiatingiliusdescribed, lends itsel't readily ito such `changes in i shape,` ol. the` `radiating isurtares thcreoiC usiniayibedesired. :In .the eoiistructionrshown .in` Figsyzl and lil, the .rilassare provided with irounded `or .knoblilie projections or deformationsLand I which are spaced at intervals on the radiair ingffins and extendfinto the air passages.

The projectionsY I which are nearest to the eenterof the kdiamond-shaped passages are preferably made larger than the deformationsv I which are arranged adjacent to the acute angles of the diamond-shaped passages. The object of this arrangement is to prevent the projections adjacent to 'the acute f ormations of the fins, the air velocity distribution in each cell can be made substantially uniform. The knob-like projections on the-fins if can be readily varied in size or entirely omitted in the design of radiators so that the resistance to the flow of air through the radiator can be controlled as may be desired. These deformations of the radiating fins may, if desired, be omitted or other fmeans for breaking up the flow of air through the air passages may be provided.

In Figs. 17 and 18, a different arrangement of the radiating fins is shown, the fins in this case being arranged substantially parallel with the tubes. In these figures K represents the tubes and L the fins provided with the integral spacing members. The edges of these radiating fins are in contact with the tubes and no perforation or slotting of the fins is knecessary to permit the tubes to extend therethrough.

Radiators provided with radiating fins vof Y the kind described are particularly desirable,y

since the fins lend themselves readily to changes or modifications of radiator design. The angles at which the parts of the fins are bent can easily be varied to produce different appearances and to provide more or less indirect radiating surface. The radiator is attractive in appearance and is mechanically strong. The radiator is also thermally eficient since the amount of material required for purposes of alining the fins is reduced to a minimum, and has the appearance of a cellular radiator.

, I claim as my invention:

l. In a radiator, the combination of tubes for the medium to be cooled, radiating fins which engage said tubes ,to conduct heat therefrom, the portions of said iins which are arranged between adjacent tubes being imperforate, said fins being bent 'to form a plurality of pairs of equal, oppositely disposed faces, a singlebent edge separating each of said faces from an adjacent face, and means at the edges of said fins for spacing said ns so that the bent edges of each fin are arranged in immediate proximity to the bent edges of adjacent fins to form air passages of substantially diamond shaped cross section.

2. In a radiator, the combination of tubes for the medium to be cooled, radiating fins whichY engage said tubes to conduct heat therefrom, the portions of said fins which are. arranged between adjacent tubes being imperforate, each of said'lins being bent to form a plurality of pairs of equal, oppositely disposed faces, and means independent of said tubes for spacing lsaid radiating fins lengthwise with' regard to each other so that Veach pair of. oppositely disposed faces forms one half of an air passage of substantially diamond shaped cross section.

3. In a radiator, the combination of substantially flat-sided tubes for the medium to be cooled, radiating fins extending transversely of said tubes and provided with apertures through which said tubes extend,l

said radiating fins belng bent to form a plurality of pairs of equal oppositely disposed faces, each of said faces being separated from an adjacent face by a single bent edge, said fins being spaced so that the bent edges thereof are arranged in immediate proximity to the bent edges of adj acent fins to form air passages of substantially diamond shaped cross section.

4. In a radiator, the combination of tubes for thek medium to be cooled, radiating fins engaging said tubes to conduct heat therefrom, said fins being bent to form a plurality of pairs of equalv oppositely disposed faces separated from each other by single n bent edges, and spacing members arranged between adjacent fins' and bent to form equal oppositely disposed parts of approximately twice the length of said faces of said fins, each of said parts being adapted to extend from the concave bent portion of one fin into the concave bent portionv of an adjacent lin for positioning said fins to form air passages of substantially diamond shaped cross section.

5.l In a radiator, the combination of tubes for the medium to be cooled, radiating fins engaging said tubes to conduct heat therefrom and bent to form corrugations, and spacing members bent to extend into a corrugation of a lin and beyond said lin into a corrugation of an adjacent fin to space said ns relatively to each other.

6. In a radiator, the combination of tubes for the medium to be cooled, radiating fins engaging said tubes to conduct heat therefrom and bent to form a plurality of pairs of oppositely disposed parts, each part being arranged at an' angle to the adjacent parts, the alternate parts being substantially parallel to each other, and a spacing member provided with similarly arranged parts of approximately twice the distance between bends, each of the parts of said ipaeiugg; members: be

` from` und bent "te ferm n.

slnwing; "Wambel" being ynlln rlg'ed` `in eentaet with a part of each of txvn mdjzanfent "fam im; spmemgxsnid fins.

for the medium te be cmed, radiating jns engaging: :seul whew te conduct heut therepilunhty 0i?, pim's of `@pposi'eiy disposed parts, `@Heh `part `being wir e e, "pmtgethe altjerxmte parte beyng `sllbsvtantmlfred et; l :m `nngle to `the adjacent `member provided u with Similarly arranged `parts of approzgnnutely twlcethedlgtance between bends, each of thewpalts ofsaid spacing member being arranged in eentaciv With; a part of euch `of twedjacent fins for Speelng sald hns, szud `spznelngmembers `being formed integral with said fins.

9. In` :L l'ndiatpr, `the `e011lbinaton of. itubes for `the medium to be cooled, mdigytingna engaging said tubes to conduct heilt jtherefrom, Said fins being bent "to fol-11141 plurality of nir lmseages of diamond shaped eresia"seetien` and knob-like pmjeetons en .said fins extendingfnto `said allypnssgxges, theprogeetlens zydjzwen',A t0 "the Leute lgles of the `cross `section of Said passa@`4 be ing s"mallenthanA the pr'ojeetiens adjacent `te themiddle portions Qffsnd ),assages.

NICHOLAS `D ,AMN'L 

